Centrifugal brake for spring-motors.



E. MILLSAPS.

CENTRIFUGAL BRAKE FOR SPRiNG MOTORS. APPLiCATiON FILED JULY\5,1915.

Pafente Feb. 29, 1916.

Attorneys.

'which the following is a sp'eoifi and claimed, changes in-- the arbor 8 anti the gear tram 9.

i the main shaft ED mums, or LA rarn'rrs';

- cs'nrnirosat Beans FOR; srnme-Mo'roas Application met m 15,

To all whom itntoy concern .Be it known that l, ED hlInLsArs, a cit zen of the United States, residing at,

yette, in the county of Walker and State of Georgia, have invented anew an nsefu Centrifugal Brake for Sriring-Motors; sofa cation. 7 The present invention appertainst'ospring motors, and aims to provide a novel and imroved mechanism for operating a*'ohu rn, ice oream freezer, cream separator, washing machine, sewing machine, coffee mill, and other devices.

is the provision of a sprin motor hav1n I unique means for control mg the spee thereof.

With theforegoingand. other objects in view which will appear as the description proceeds,'the invention resides in the combv. nation and arrangement of parts and in the details of construction hereinafter described it being understood that-- precise embodiment of the invention herein disclosed canbe made with in the scopejof what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawings, wherein Figure 1 isa verticalysection of the works. Fig. 2 is a sectional viewillustrating the governor for controlling the speed. of the machine.v

In carrying out the invention there tis' provided a; works 3 which. embodies a skelet through which is journaled the f 5, An arbor Sis journaled with shaft 5 is/ rotated much faster than the arbor 8. A spiral mainv spring connects the 'lhe governor for regulating thespeecl of 5, embodies a shaft journaled through the frame inear; the shaft 5, and. operatively oonneeted thereto by means of a pinion 6 seonred upon the shaft 15' and meshing with arelativelyTla-rge gear wheel 17 secured nponthe-shaft 5. Thus, the shaft 15 is rotated at a greater rate of s'peetifthan'the shaft 5 so that the governor will-113a; more eifectiveorsensitive. brake the shaft 15,

i fipecific ation ot Letters'isteiit.

La Fa- 1 frametflhe orderthat it, may he} readilyj operated by k i 23' is 1 swung "to".

hand about the drnm'- 18,

" tighten-thebrake ii'jisstoppeiamlff the motion oftheshaft' j mechanism. is permitted to operate. One of the speoifioobjects of the invention fulorumed, as at 25";

l verging "arms smaller. am of the sleeve one end oi yieldably move whenever desiredg smart, Ass reriortor" own- A F 'ro ILLIAM n. or noo isrmne, QEOBQ'IAT s 1915.1. s iai m. 40,052.

around the brake drum 1:8, brake band 20 is anehoretl a lever connected to V lever 23 pro ects upwardly}: in

lmndg when, the lever when the hrake hand EZOI'is loosene i the The governor embodies apair of angnlar or L-shaperl levers 25 having to the enlargement -15 of the shaft 15, and one arm of see" lever 25 are arrange 26 are thrown apart A- second pair of'lev'ers 28 areiulorumemas at 29 to-the shaft l5 'adjaoent the arms 27 of th "levers25, and .are'ipro'vided"Pith (ll-f 30 between .lying in the paths the, arms 27 move toward one another,;the

rammed relies, 1916.

and is inolosed by a circular case 19 attacheii to; theframe 4:, and a brake band. 20 passes: o

Qn'e endof the] owithinfth'ebase'. l 19j,=an(.l the other end ofgthe hrake hand-Iis' I 5 -23- inlrumed to-th their elbows 1o 1 25is provided with a weight 26. The other 7,

'arms27 of thelevers d to;

, e arms27 and 5 93 hereby "wh i arms 39 will be moved similarly. Aeoiled wire, expansion tween the arms then'i and thearms 27;. The levers 28 are relatively short, and said levers are providecl' with oppositely projecting relatively' ;long free ends" "rospring 31 is "dispose arms 30 of the arms 32 whose ject within a tapered or tion sleeve orenfi533 whioh is leather: or other frictional materiaL i- Thfe an adjusting bar able upon a pair. of stems th frame 4:, and coiled -wire ex '37 areldisposedu on the stems between 30' for normally separating;

Isa:

frusto coni'oal" 10-; I i edfwithg,

Tao 33'is seeured'toff 34' whiohis slid-P1 35 which are'at 1a theba'r'il l: and the'heads 4 36 of the stemawhe 'ehy thesprings' 37, will ifrom'the the arms or brake shoes 38 is threaded through the mm ,4: to" bear against the bar Bl'hetween A projects so that its iilay bar: 34; away a es be readil j. ,When the shaft 5 will be rotateclat' weights at w ll;

'32. adjusting screw action, causing the arms 27 to be moved toward one another. The arms 30 will therefore be swung toward one another, for separating the arms of brake shoes 32, and when the arms 32 engage the interior of the sleeve 33, the speed of the machine will be checked. By adjusting the bar 34; throu h the medium of the adjusting screw 38, tie sleeve 33 may he moved longitudinally relative to the arms 32, so that the arms will contact with the sleeve when the arms 32 are separated more or less. For example, when the sleeve 33 is arranged as illustrated in Fig. 2, the arms 32 may separate a comparatively large distance before contacting with the sleeve whereas, if the sleeve 33 is moved over the arms 32, so that the arms 32 engage the smaller end of the sleeve, the arms cannot separate but a short distance, and this will retard the motion of the machine to such an extent that it will rotate slower. By adjusting the screw 38, therefore, the speed of the machine may be controlled to a nicety.

Having thus described the invention, what is claimed as new is In a device of the character described, a shaft, a tapered sleeve movable upon said shaft, means for adjusting said sleeve, a pair of levers pivoted to said shaft and having long arms projecting into said sleeve and providing brake shoes to contact with the 'interior thereof, said levers having rela- ED MILLSAPS.

Witnesses:

Jonson C. CAUENDER, \V. H. CARROLL. 

